Attachment for dental engines.



PATENTED JUNE 16, 1903.

-J. 0. HOLSON] ATTACHMENT FOR DENTAL ENGINES.

APPLICATION FILED MAR. 6, 1903.

N0 MODEL.

25 Am Jaz w/ TNESSES.

0 E A A N w m E] T V A d PHOYO-LIYHOY, WASKINGTQN, u. c

NITED STATES Patented June 6 1903.

FFICE.

ATENT ATTACHMENT FOR DENTAL ENGINES.

SPECIFICATION forming part of Letters Patent No. 731,302, dated J une 16, 1903.

Application filed March 6, 1903.

Serial No. 146,451. (No model.)

' To ctZZ whom it may concern.-

Be it known that 1, JOHN C. HOLSON, a citizen of the United States, and a resident of 0rd, in the county of Valley and State of Nebraska, have invented a new and Improved Attachment for Dental Engines, of which the following is a full, clear, and exact description.

This invention relates to a device for supplyinga stream of cooling-water to a patients tooth and to the dental tool during dental operations. Ordinarily the parts become hot in operation unless they are continually cooled by an attendant throwing water thereon, and great pain will result to the patient and inconvenience to the dentist.

My invention resides in a peculiarly-constructed attachment engageable with the barrel of any ordinary dental engine and comprising a nozzle connected with the water source and certain peculiar means for manually controlling the movement of the water from the nozzle, so that the dentist may turn the water on or off at will by an easy operation of the same hand which holds the tool.

This specification is an exact description of one example of myinvention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a general view showing the invention in use. Fig. 2 is a plan view thereof. Fig. 3 is a longitudinal section of the invention, and Fig. 4. is a perspective View showing the attachment disconnected from the tool.

In the drawings, 10 indicates the dental engine, and 11 the barrel of the tool thereof.

12 indicates a source of Water-supply, and

14 indicates a tube passing from the supply 12 to the attachment which forms the subject-matter of my invention. This attachment comprises, as best illustrated in Fig. 1, a tubular body portion 15, split longitudinally, as indicated at 16, and connected by an arm 17 with a split clamping-band 18 and a contracted collar 19, the collar 19 being located forward of the band 18. Fastened to the connecting-arm 17 is the nozzle 20, to which the tube 14. leads, this nozzle projecting beyond the collar 19 alongside of the tool proper, 21, as indicated in Fig. 1. The collar 19 contains a rubber bushing 19, which fits snugly against the tool or tool-holder 21 and prevents the latter from leaking back into the barrel 11.

The attachment is fastened to the barrel of the dental tool by springing the split sleeves 15 and 18 over the barrel and bringing the collar 19 up tight against the front end of the barrel or handpiece, the bushing or gasket 19 preventing the saliva and Water from running back into the tool and rusting the mechanism thereof. The split tubes 15 and 18 hold the attachment securely in place, so that it forms virtually a part of the barrel or handpiece.

Two lugs 22 are mounted on the main tube 15 and have a finger-lever 23 fulcrurmed between them, this lever having its inner end 2 1 turned laterally to form a stop adapted to bear on the tube lat and close the same. At its other end the lever 23 has a finger-piece 25, which facilitates the operation of the lever to raise the end 24 from the tube 14..

26 indicates a spring which is attached, by means of a suitable clamp 27, to the lever 23 at one end of the spring, the other end of the spring bearing on the tube 18 and being held to move longitudinally thereon by engaging one side of the arm 17 and a head 28, fastened to or formed on the sleeve 18 parallel to the arm 17, as best shown in Fig. 4. By manipulating the lever 23 the end 24 thereof may be engaged with or disengaged from the tube let, and thus the tube may be opened or closed at will.

29 indicates a guiding-eye located adjacent to the end 24 of the lever 23 and having the tube 1 1 passed through it.

It will be observed that the attachment may be securely engaged with the dental tool, so as not to encumber the same or interfere with its proper operation. The movable parts of the devicet'. e., the lever 23 and spring 26- bear on the attachment alone, and no part ongages the handpiece or barrel of the dental tool. The appliance allows a strong current or stream of water to flow the instant the operator presses the finger-piece 25. The object of thus flushing the mouth of the patient during the dental operation will be apparent.

The attachment may be applied to any ordinary dental tool, and this is due principally to the novel structure of the clamping-sleeves '15 and 18 and their juxtaposition with respect to each other and to the collar 19..

Various changes in the form, proportions, and minor details of the invention may be resorted to at will without departing from the spirit and scope thereof. Hence I consider myself entitled to all such variations as may lie within the intent of myclaims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination of a clamping device, a Water-supplying means, means mounted on the clamping device for regulating the watersupply also mounted on the clamping device and a packing-gasket or collar attached to the clamping device at the front thereof, for the purpose specified.

2. The combination of a water-supply tube, a nozzle attached thereto, a clamping device on which the nozzle is mounted, said clamping device being capable of removable attachment to a dental engine and comprising two split tubular sections, and an arm connecting said tubular sections together, a collar arranged at the front end .of the clamping device, and means for controlling the Water flow from the nozzle.

3. The combination of a flexible water-supply tube, a nozzle communicating therewith, a clamping device on which the nozzle is mounted, said clamping device being capable of removable attachment to a dental engine and comprising two split tubularsections, and an arm extending between and connecting them, a tapered collar arranged at the front end of the clamping device and adapted to engage the end of the barrel or handpiece of a dental engine, and a spring-pressed lever mounted on the clamping device and engaging the water-supply tube, to control the water flow.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN C. HOLSON.

Witnesses:

BERTHA D. BOETTGER, LLOYD W. ROBBINS. 

